What DB principles would be beneficial in this situation?

She is interested in moving back in, me moving to basement. Girls moving into smaller bedroom. Her and twins in master bedroom.

I have started to mend things I have done. Reassuring her. Not being defensive. Not being decietful. Open and honest since this started about where I am, what I am doing, who I am with. Giving her space. Not asking where she has been, who with. Not pressuring her.

Working on myself.
Making a budget.
paying all household bills on time.
being more involved with our children without being over bearing.
accepting her decisions, and stilulations on living arrangements.

Me:35 W:37; S17 D15 D15 D1 D1
M:9 years T:11
BD 5/2/15
W moved out with her D15 our D1 D1 6/15/16
W filed for divorce 6/19/15
W moved back in 7/11/15